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\title{\boldmath{ $\bar{\Xi'}_b^+$}\ \ \ \ \ \ \ $**$}
\maketitle
The $\bar{\Xi'}_b^+$ has not been observed and is only included to complete the lightest baryon multiplet with one bottom quark. The mass is obtained using the mass difference from the charm system and the mass of the $\Xi_b$, this is lower than theoretical calculations. The mass difference is such that there are no allowed strong decay modes and therefore we assume that the radiative mode with a photon is the only mode. The width is calculated using the decay and the $\bar{\Xi'}_b^+$ is allowed to be off-shell by ten times this width. 
The $\bar{\Xi'}_b^+$ has mass $5899.9$~MeV and is unstable. The $\bar{\Xi'}_b^+$ has spin $1/2$, charge $1$ and is colour neutral.
 The $\bar{\Xi'}_b^+$ is a baryon and is from the $(56,0^+_0)$ $40$plet.The $\bar{\Xi'}_b^+$ has width $0.00018$~MeV. The lower limit on the mass of the particle is $0.0018$~MeV and the upper limit is $0.0018$~MeV. These are the deviations from the on-shell value. The branching ratios are fixed.
The properties of the particle and its antiparticle are taken to be charge-conjugate to each other.
 The PDG code is -5312.
\setlongtables
\begin{longtable}[t]{|c|c|c|p{1in}|p{2.5in}|c|}
\hline
Branching & Rating & On/ & Outgoing  & Description & Decayer  \\ 
Ratio     &                                 & Off & Particles &             &         \\ 
\hline
\endhead
\caption{The decay modes of the $\bar{\Xi'}_b^+$ (continues).}
\endfoot
\caption{The decay modes of the $\bar{\Xi'}_b^+$.}
\endlastfoot
\label{tab:-5312decaymodes}
1.000000 & $**$ & on & $ \bar{\Xi}_b^+, \gamma $  & Radiative decay mode of $\bar{\Xi'}_b^+$ which we assume is the only mode   & Herwig::RadiativeHeavyBaryon::HeavyGamma \\ 
\hline
\end{longtable}The $\bar{\Xi'}_b^+$ decay modes are given in Table~\ref{tab:-5312decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|Xi'_b-Mass| for the $\bar{\Xi'}_b^+$.
The width generator is \verb|Xi'_b-Width| for the $\bar{\Xi'}_b^+$.

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 The particle was checked by Peter Richardson at 9:41:18 on the 4th of February 2009. The most recently changed decay mode was modified at 10:29:21 on the 4th of April 2005. The particle data was last modified at 11:42:1 on the 6th of July 2008.

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